WISCONSIN FLOW REPORT

Last Updated: December 21, 2025

The state of Wisconsin is experiencing varied streamflow conditions across its rivers and watersheds, with some areas showing signs of flow drought and others nearing potential flood conditions. Notably, the Fox River at Oil Tank Depot in Green Bay has a high streamflow of 10900 cubic feet per second (cfs), which is 81.06% above normal, accompanied by an unusually high gage height of 585.58 feet, indicating a need for nearby communities to be alert for possible flooding. Conversely, the Sheboygan River at Sheboygan and the Manitowoc River at Manitowoc show streamflows significantly below normal, at -63.62% and -76.93%, respectively, signifying low water levels that could impact recreational activities and local ecosystems. The St. Croix River near Danbury, a draw for water enthusiasts, is slightly above normal by 12.4%, while the Wisconsin River system, including the segments at Merrill and Wisconsin Rapids, is well below normal flow, potentially affecting both the environment and water-based recreation.

Severe flow deviations are also seen in the Trempealeau River at Dodge with a streamflow of 953 cfs, marking a sharp increase of 91.37% above normal, which could signal flooding conditions if trends continue. The Yahara River near Fulton exhibited a notable increase of 256.21% above normal flow, raising concerns for communities along its path. Meanwhile, whitewater trails along the Bois Brule River have seen an increase in streamflow over the last 24 hours and currently run at 183 cfs, which could appeal to whitewater enthusiasts in Brule. As spring approaches, residents and visitors should remain vigilant and keep informed about the latest river conditions, as fluctuations in weather patterns could further impact streamflows across the state.

       



Wisconsin is characterized by a humid continental climate with distinct seasonal variations in temperature and precipitation. Major rivers include the Mississippi, St. Croix, Wisconsin, and Menominee, which are fed by tributaries that drain into the Great Lakes or the Mississippi River. The region also contains numerous reservoirs and dams, including the Wisconsin River system and the Chippewa River. Hydrology in Wisconsin is affected by snowpack, which can lead to spring flooding, and by changes in land use and agricultural practices. In recent years, the state has experienced an increase in extreme precipitation events, leading to more frequent flooding and erosion. Overall, the state's hydrology is complex and influenced by multiple factors, including climate, topography, and human activity.